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Amperium (unitas)

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Simplex ammetri ferri moventis exemplar exhibitorium. Cum fluxus per spiram augeatur, tubus mergens porro intra spiram trahitur, atque index ad dextram errat.

Amperium,[1] signo A,[2] saepe amp imminutum,[3] est unitas basalis SI fluxus oneris electrici,[4][5][6] ex Andrea Maria Ampère appellata, mathematico et physico Francico, qui pater electromagntismi cum Ioanne Christiano Ørsted physico Danico aestimatur.

Definitio mathematica[recensere | fontem recensere]

Amperium anno 1948 sic definitum est, postulando constantem magneticum in lege Biot-Savartiana:

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Fluxus electricus constans fit si in duobus conductoribus parallelis contineatur, longitudinibus infinitis, quorum diametram neglegere possumus, uno metro subtiliter inter eos, vim in quoque conductore creat magnitudinis 2×10–7 Newtonii per metrum conductoris.

Notae[recensere | fontem recensere]

  1. Warning icon.svg Fons nominis Latini desideratur (addito fonte, hanc formulam remove)
  2. "2. SI base units", SI brochure (octava ed.), BIPM .
  3. SI supports only the use of symbols and deprecates the use of abbreviations for units."Bureau International des Poids et Mesures". 2006. p. 130 .
  4. BIPM (20 Maii 2019). "Mise en pratique for the definition of the ampere in the SI" .
  5. "2.1. Unit of electric current (ampere)", SI brochure (8th ed.), BIPM .
  6. Base unit definitions: Ampere Formula:Webarchive. Physics.nist.gov. Accessum 28 Septembris 2010.

Bibliographia[recensere | fontem recensere]

  • Bodanis, David. 2005, Electric Universe. Novi Eboraci: Three Rivers Press. ISBN 978-0-307-33598-2.
  • Herman, Stephen L. 2020. Delmar's standard textbook of electricity. Ed. septima. Australia et Brasilia: Cengage. ISBN 9781337900348, ISBN 1337900346.
  • Kowalski, L. 1986. "A short history of the SI units in electricity." The Physics Teacher 24 (2): 97–99. Bibcode:1986PhTea..24...97K. Archivum.
  • Monk, Paul M. S. 2004. Physical Chemistry: Understanding our Chemical World. John Wiley & Sons. ISBN 0-471-49180-2.

Nexus externi[recensere | fontem recensere]